dimensionless damping factor 是什么因素?

dimensionless frequency是什么意思 dimensionless damping factor 是什么因素? 英语翻译Express the unit and dimension for the electric field in terms of unit and dimensionality of charges,if we take the permittivity of the empty space as dimensionless quantity.Express the charge dimension in terms ofmechanical fundamental q 英语翻译5上At present,the comprehensive index evaluationframework with dimensionless unit of ecological sustainabilityhas not been used widely,in contrast to thefact that comprehensive index evaluation frameworkshave been widely applied to susta